Error while creating/deleting users.

Erro #0:
OMV\ExecException: Failed to execute command 'export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin; export LANG=C.UTF-8; omv-salt deploy run postfix 2>&1' with exit code '1': Traceback (most recent call last):
  File "/sbin/omv-salt", line 136, in <module>
    sys.exit(main())
  File "/sbin/omv-salt", line 132, in main
    cli()
  File "/usr/lib/python3/dist-packages/click/core.py", line 764, in __call__
    return self.main(*args, **kwargs)
  File "/usr/lib/python3/dist-packages/click/core.py", line 717, in main
    rv = self.invoke(ctx)
  File "/usr/lib/python3/dist-packages/click/core.py", line 1137, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/lib/python3/dist-packages/click/core.py", line 1137, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/lib/python3/dist-packages/click/core.py", line 956, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/lib/python3/dist-packages/click/core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "/sbin/omv-salt", line 120, in deploy_run
    caller = salt.client.Caller(mopts=mopts)
  File "/usr/lib/python3/dist-packages/salt/client/__init__.py", line 2111, in __init__
    import salt.minion
  File "/usr/lib/python3/dist-packages/salt/minion.py", line 30, in <module>
    import salt.crypt
  File "/usr/lib/python3/dist-packages/salt/crypt.py", line 65, in <module>
    from Cryptodome.Cipher import AES, PKCS1_OAEP
  File "/usr/lib/python3/dist-packages/Cryptodome/Cipher/__init__.py", line 5, in <module>
    from Cryptodome.Cipher._mode_cfb import _create_cfb_cipher
  File "/usr/lib/python3/dist-packages/Cryptodome/Cipher/_mode_cfb.py", line 50, in <module>
    int CFB_stop_operation(void *state);"""
  File "/usr/lib/python3/dist-packages/Cryptodome/Util/_raw_api.py", line 258, in load_pycryptodome_raw_lib
    raise OSError("Cannot load native module '%s': %s" % (name, ", ".join(attempts)))
OSError: Cannot load native module 'Cryptodome.Cipher._raw_cfb': Trying '_raw_cfb.cpython-37m-x86_64-linux-gnu.so': , Trying '_raw_cfb.abi3.so': /usr/lib/python3/dist-packages/Cryptodome/Util/../Cipher/_raw_cfb.abi3.so: cannot open shared object file: No such file or directory, Trying '_raw_cfb.so': /usr/lib/python3/dist-packages/Cryptodome/Util/../Cipher/_raw_cfb.so: cannot open shared object file: No such file or directory in /usr/share/php/openmediavault/system/process.inc:182
Stack trace:
#0 /usr/share/php/openmediavault/engine/module/serviceabstract.inc(60): OMV\System\Process->execute()
#1 /usr/share/openmediavault/engined/rpc/config.inc(167): OMV\Engine\Module\ServiceAbstract->deploy()
#2 [internal function]: Engined\Rpc\Config->applyChanges(Array, Array)
#3 /usr/share/php/openmediavault/rpc/serviceabstract.inc(123): call_user_func_array(Array, Array)
#4 /usr/share/php/openmediavault/rpc/serviceabstract.inc(149): OMV\Rpc\ServiceAbstract->callMethod('applyChanges', Array, Array)
#5 /usr/share/php/openmediavault/rpc/serviceabstract.inc(588): OMV\Rpc\ServiceAbstract->OMV\Rpc\{closure}('/tmp/bgstatus4U...', '/tmp/bgoutput7P...')
#6 /usr/share/php/openmediavault/rpc/serviceabstract.inc(159): OMV\Rpc\ServiceAbstract->execBgProc(Object(Closure))
#7 /usr/share/openmediavault/engined/rpc/config.inc(189): OMV\Rpc\ServiceAbstract->callMethodBg('applyChanges', Array, Array)
#8 [internal function]: Engined\Rpc\Config->applyChangesBg(Array, Array)
#9 /usr/share/php/openmediavault/rpc/serviceabstract.inc(123): call_user_func_array(Array, Array)
#10 /usr/share/php/openmediavault/rpc/rpc.inc(86): OMV\Rpc\ServiceAbstract->callMethod('applyChangesBg', Array, Array)
#11 /usr/sbin/omv-engined(537): OMV\Rpc\Rpc::call('Config', 'applyChangesBg', Array, Array, 1)
#12 {main}